OOGENESIS • Oogenesis (ovogenesis) is the sequence of events by which oogonia are transformed into mature oocytes • This maturation process begins before birth and is completed after puberty • Oogenesis continues to menopause‚ which is permanent cessation of the menses (bleeding associated with the menstrual cycles) 2 maturation processes of oocytes are involved; Prenatal maturation Postnatal maturation Prenatal Maturation of Oocytes • Primordial germ cells (46‚ 2N) migrate from the wall of
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FSH‚ and YZ represents the thickening of the corpus luteum‚ done by LH‚ which produces progesterone (Y). b) The ovarian hormones released by WX is estrogen and progesterone is released by YZ. c) Estrogen and progesterone exert negative feedback effects. d) See attached graph. e) See attached graph. f) Before ovulation the temperature slowly decreases and reaches a high point at ovulation then starts to decrease again. g) The corpus luteum is essential for establishing and maintaining
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Split-Brain Patients: The independent functioning of the left and right hemisphere when no longer connected by the corpus callosum. The human brain is a dynamic and elastic processing unit that manages the great extent of human life. This entails both conscious and unconscious functioning of each human system. For example‚ the brain controls emotions through behaviors‚ physiological responses (both autonomic and hormonal)‚ and feelings in response to stimuli from the environment (Carlson
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Reproduction Prostaglandines: DON’T come from the prostate gland. Come from the seminal vesicles. Cause muscle contractions Found in ejaculate Prostate gland Produce enzymes Produces buffers that buffer urine in urethra and the acidic environment in the vagina Contains anticoagulant enzymes that keep the enzymes from coagulating Erectile tissue (aka spongy tissue) has sinuses in it that fill with blood‚ causing the penis to erect Some animals have a bone in their penis called a baculum (not humans)
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4Action of hormones in the Menstrual Cycle The Ovarian Cycle The cycle begins with the release from the hypothalamus of gonadotrophin – releasing hormone (GnRH)‚ which stimulates the pituitary to secrete small amounts of Follicle Stimulating Hormone (FSH) and Luteinising Hormone (LH). The FSH stimulates follicle growth‚ aided by LH and the cells of the growing follicles start to make estrogen. Notice in figure(d) that there is a slow rise in the amount of estrogen
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day in May 2007‚ John Amasi looked down on the city of Corpus Christi‚ Texas‚ as his plane approached the airport. As director of Production and Engineering at RL Wolfe—a $350M privately held plastic pipe manufacturer headquartered in Houston‚ Texas—he was looking forward to visiting the company’s plant in the city. Four years previously‚ in 2003‚ when RL Wolfe had purchased Moon Plastics—a small‚ familyowned custom plastics manufacturer in Corpus Christi—Amasi had seen an opportunity to implement self-directed
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Director of RL Wolfe’s of production and Engineering. This case study was about the introduction of the concept of self-directed teams into a newly rehabbed plant in Corpus Christi‚ Texas in 2004. The analysis took place after 4 years of initial implementation of the SDT structure. Amasi expected after the implementation of SDT’s the Corpus Christi plant would achieve high productivity. Self –directed teams are small groups of employees responsible for an entire work process or segment‚ expected by
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Anwesha Das Westview High School A&P // Period 03 OBJECTIVE The main objective of this lab is to identify main structures of the brain‚ like the corpus callosum‚ hypothalamus‚ etc‚ in real sheep brain. Although it is a sheep brain‚ the main purpose of this lab is to develop an essential comprehension of what the primary structures of the cerebrum will look like in an actual brain. CONCLUSION The purpose of this lab is to get a basic understanding of what primary structures of the brain will
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sufficient quantity and coverage. The opportunity now exists‚ however‚ for corpus linguistics to redress this balance‚ by taking advantage of the new availability‚ in the 1990s‚ of large and varied spoken English corpora. These include notably the spoken component of the British National Corpus‚ collected by Longman; the spoken component of the Bank of English corpus‚ collected by the Collins COBUILD team‚ and the CANCODE corpus‚ collected by Cambridge University Press. (To say that these publishers
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Question 1 1 out of 1 points The corpus luteum Answer Selected Answer: secretes progesterone Correct Answer: secretes progesterone Question 2 1 out of 1 points In the testes‚ testosterone is produced by the _______ cells Answer Selected Answer: Leydig Correct Answer: Leydig Question 3 1 out of 1 points Sex steroids are _______ molecules derived from _______. Answer Selected Answer: lipid; cholesterol Correct Answer: lipid; cholesterol
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